I'm not too sure if this is a problem or not, so I'd like to run it by with you guys.

I have 3 gears on the front left, 9 on the front right.When I shift the front left gear from 1 to 2, the chain makes a cranking noise and pedaling doesn't feel smooth. I keep changing the front right gears (from 1 all the way up to the max) and it still makes the cranking noise on the chain. This doesn't go away.

To amend this problem I need to change my front left gear to 3, and then drop it back down to 2 for the chains to click properly and then it becomes smooth.

Basically, I'm having trouble changing front left gear from 1 to 2. I need to do 1-2-3-2 for a smooth change.

I'm not a very bike technical person, hoping someone would understand and shed some light. Thank you.

Sounds like a problem with cable tension, causing the chain to rub against the front derailleur. If you've just bought it, take it back to where you got it from for a quick adjustment (if you don't want to do it yourself). Cables will stretch when they're new and this could be the cause of the problem. You should have been invited back to the shop for a service when you bought it, take advantage of it.

Otherwise, there are lots of good videos on youtube on adjusting cable tension. You basically adjust a little knobby thing somewhere along the cable and all of your problems disappear. Of course, it could be a case of not having such an adjuster, in which case you'd have to adjust the pinch bolt. Better to take it back to the bike shop if you don't have any experience with bikes. Make sure they show you how to adjust it. If they don't want to do this, go to another shop that will.

On some bikes, the front derailleur has a trim function - a half-change from 2 to 3 doesn't take the chain up to the bigger ring, it just moves the derailleur cage a smidgen to the right to stop chain rub. I'm not sure if this applies to your bike.

Acera/tourney are pretty random shimano gear imo, doesn't have the manufacturing tolerances of the better gear, so you get good examples and bad examples. I would get the cable adjusted, if it doesn't go away, then I'd buy a deore triple FD for it, as thats not a crapshoot on tolerances.

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